if no address if specified for the first command, the address range become the entire file

src/extensions/command-panel/spec/command-interpreter-spec.coffee

@@ -273,6 +273,25 @@ describe "CommandInterpreter", ->
       runs ->
         expect(buffer.lineForRow(6)).toBe '      current < pivot ? left.push(current) : right.push(current);'
 
+    describe "when there is no address range is given", ->
+      describe "when there is no text selection", ->
+        it "uses the entire file as the address range", ->
+          waitsForPromise ->
+            editSession.clearSelections()
+            interpreter.eval('s/current/foo/g', editSession)
+          runs ->
+            expect(buffer.lineForRow(3)).toBe '    var pivot = items.shift(), foo, left = [], right = [];'
+            expect(buffer.lineForRow(6)).toBe '      foo < pivot ? left.push(foo) : right.push(foo);'
+
+      describe "when text is selected", ->
+        it "uses the selection as the address range", ->
+          waitsForPromise ->
+            editSession.setSelectedBufferRange([[6, 0], [6, 44]])
+            interpreter.eval('s/current/foo/g', editSession)
+          runs ->
+            expect(buffer.lineForRow(3)).toBe '    var pivot = items.shift(), current, left = [], right = [];'
+            expect(buffer.lineForRow(6)).toBe '      foo < pivot ? left.push(foo) : right.push(current);'
+
     describe "when not global", ->
       describe "when there is a single selection", ->
         it "performs a single substitution within the current selection", ->

src/extensions/command-panel/src/commands/all-lines-address.coffee

@@ -0,0 +1,9 @@
+Address = require 'command-panel/src/commands/address'
+Range = require 'range'
+
+module.exports =
+class AllLinesAddress extends Address
+    getRange: (buffer)->
+      buffer.getRange()
+
+    isRelative: -> false

src/extensions/command-panel/src/commands/composite-command.coffee

@@ -1,5 +1,6 @@
 _ = require 'underscore'
 $ = require 'jquery'
+AllLinesAddress = require 'command-panel/src/commands/all-lines-address'
 
 module.exports =
 class CompositeCommand
@@ -7,6 +8,10 @@ class CompositeCommand
 
   execute: (project, editSession) ->
     currentRanges = editSession?.getSelectedBufferRanges()
+
+    if not @subcommands[0].isAddress() and currentRanges?.every((range) -> range.isEmpty())
+      @subcommands.unshift(new AllLinesAddress())
+
     @executeCommands(@subcommands, project, editSession, currentRanges)
 
   executeCommands: (commands, project, editSession, ranges) ->